Australian Biological Resources Study

Australian Faunal Directory

Genus Macroasteropteron Kornicker, 1994

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Genus Macroasteropteron Kornicker, 1994

 

Introduction

There is only one specimen known for the type species Macroasteropteron mindax Kornicker, 1994 (Kornicker 1994). However, the species has such distinctive features that a new genus was erected to contain it. The seventh limb has a bulbous terminal process, unique in the family. The endopod of the second antenna lacks the typical terminal seta, and the maxilla is so atypical as to be considered possibly aberrant.

 

Distribution

Extra Distribution Information

SE slope of Australia; 996 m.


Note that conversion of the original AFD map of states, drainage basins and coastal and oceanic zones to IBRA and IMCRA regions may have produced errors. The new maps will be reviewed and corrected as updates occur. The maps may not indicate the entire distribution. See further details below.
IBRA and IMCRA regions (map not available)
drainage basins and coastal and oceanic zones (map not available)

IMCRA

Tasmania Province (10), Southeast Transition (11), Central Eastern Province (12), Tasman Basin Province (13)

Original AFD Distribution Data

Australian Region

  • Australia
    • 200 mile fishing zone: SE oceanic

Distribution References

Diagnosis

Outer surface without ribs, rostrum small and incisure shallow. Dorsal margin with locking structures at each end. Infold of rostrum with few bristles, and infold of posterior without setal bristles. First antenna: 2nd segment short, separated from long 3rd segment by weak suture, and without bristles; 7th and 8th segments well developed. Sensory bristle of 5th segment with 2 small proximal filaments followed by 2 long filaments and bifurcate tip; a-bristle of 7th segment bristle-like; b-bristle of 7th segment small; d-bristle of 8th segment absent; e-bristle of 8th segment well developed, filament-like. Antenna: protopod 3-segmented. Mandibula: exopod well developed; 2nd endopodal segment elongate. Fifth limb: comb elongate with 1 small lateral bristle. Sixth limb: anterior margin of trunk with numerous medial bristles. Seventh limb: with bulbous bilobed tip with peripheral spinous teeth. Furca: no secondary claws between main claws.

 

History of changes

Note that this list may be incomplete for dates prior to September 2013.
Published As part of group Action Date Action Type Compiler(s)
28-Mar-2012 28-Mar-2012 MODIFIED
30-Mar-2010 MODIFIED